Automatic feeding device for cutting automobile chassis

Abstract

The invention discloses an automatic feeding device for cutting an automobile chassis, and relates to the field of cutting of automobile parts, the automatic feeding device comprises a conveying belt, and two guide plates are symmetrically mounted on one side of the top of the conveying belt. According to the feeding device, when feeding is conducted, chassis accessories are clamped and positioned through two clamping plates on the inner side of a clamping piece, accurate positioning of the accessories in the machining process is ensured, a first driving motor on one side of a first fixing frame is started, a first crank is controlled to rotate, and then through the synergistic effect of a second transmission rod and a first transmission rod, machining precision is improved. And the rotating rod further drives the swinging rod to move, so that the movable rod completes accurate rotation, horizontal movement and vertical downward movement under the guidance of the first limiting block, and therefore, the clamping piece is accurately controlled to clamp and position the chassis accessory, and machining errors caused by position deviation are effectively reduced. And the machining precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts cutting, in particular to an automatic feeding device for cutting automobile chassis. Background Art

[0002] There are many kinds of auto parts, including auto chassis parts and other types of parts. During the processing and production process, it is often necessary to cut the excess parts of some of these auto chassis parts. Using laser beams for cutting can achieve precise processing, which is especially suitable for manufacturing chassis parts with complex shapes and high precision requirements. Laser cutting has the advantage of non-contact processing, can avoid tool wear, and can efficiently complete processing tasks.

[0003] For example, the "automatic feeding device for automobile parts processing" with publication number: CN112720037A includes a base, a slide, an adjusting mechanism and a clamping mechanism. The base is vertically arranged and one end face is slidably connected to the slide, and the end face of the slide away from the base is provided with a clamping mechanism through the adjusting mechanism; the adjusting mechanism includes a first electric push rod, a first adjusting arm, a second adjusting arm, a second electric push rod and a third electric push rod. The first electric push rod is centrally and vertically fixed on the end face of the slide away from the base, the telescopic end of the first electric push rod is rotatably connected to the first adjusting arm, and the end of the first adjusting arm away from the first electric push rod is rotatably connected to the second adjusting arm, and the clamping mechanism is located at the end of the second adjusting arm away from the first adjusting arm.

[0004] However, in the prior art, during the cutting process of the automobile chassis, the use of manual feeding will lead to frequent shutdowns and adjustments, thereby reducing the overall production efficiency. In addition, manual feeding increases the workload and fatigue of operators. Manual feeding may also lead to inaccurate material placement, thereby increasing the generation of waste and further increasing production costs. In addition, frequent contact with the cutting equipment is prone to safety accidents, so the lack of an automatic feeding system may increase the risk of work-related injuries. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic feeding device for automobile chassis cutting to solve the problem proposed in the above background technology that manual feeding will lead to frequent shutdowns and adjustments, thereby reducing overall production efficiency. In addition, manual feeding increases the work intensity and fatigue of operators.

[0006] To achieve the above object, the present invention provides the following technical solution: an automatic feeding device for cutting automobile chassis, comprising a conveyor belt, two guide plates are symmetrically installed on one side of the top of the conveyor belt, a transfer mechanism is installed on one side of the top of the conveyor belt, and a feeding mechanism is installed on one side of the conveyor belt, and a clamping member is installed on the bottom of the transfer mechanism; The transfer mechanism includes a first fixed frame, a side wall of the first fixed frame is rotatably connected to a rotating rod, one end of the rotating rod is fixedly connected to a swing rod, and the other end of the rotating rod is fixedly connected to a first transmission rod, a movable rod is arranged on one side of the first fixed frame, one end of the swing rod extends to the inner side of the middle part of the movable rod, and the swing rod is rotatably connected to the movable rod, a limiting hole is provided at the top end of the movable rod, a first limiting block is slidably connected to the inner side of the limiting hole, one end of the first limiting block is rotatably connected to the side wall of the first fixed frame, one end of the first transmission rod is rotatably connected to the second transmission rod, and one end of the second transmission rod is rotatably connected to the first crank; The clamping member comprises a mounting frame, two movable blocks are symmetrically mounted on the inner side of the mounting frame, and two clamping plates are symmetrically arranged on one side of the mounting frame, and the clamping plates are fixedly connected to the side walls of the movable blocks.

[0007] Preferably, a first driving motor is installed on one side of the top of the first fixing frame, an output end of the first driving motor is fixedly connected to the first crank, and a bottom end of the movable rod is fixedly connected to the top of the mounting frame.

[0008] Preferably, a limiting groove is provided on a side wall of the movable block, a cylinder is fixedly connected to the center of one side of the mounting frame, and a driving block is fixedly connected to the output end of the cylinder.

[0009] Preferably, second limit blocks are fixedly connected to both sides of the driving block, the second limit blocks are slidably connected to the limit grooves, and the cross-section of the second limit blocks is a trapezoidal structure.

[0010] Preferably, the top and bottom of the movable block are fixedly connected with sliders, and the sliders are slidably connected to the mounting frame.

[0011] Preferably, the feeding mechanism includes a second fixed frame, a feeding frame is installed above the second fixed frame, a side wall of the feeding frame is fixedly connected to the conveyor belt, and a second driving motor is installed on one side of the top of the second fixed frame.

[0012] Preferably, the top of the second fixed frame is rotatably connected to two second cranks, a movable frame is installed below the feeding frame, and the bottom end of the movable frame is rotatably connected to one end of the second crank.

[0013] Preferably, one of the second cranks is fixedly connected to the first eccentric wheel, one end of the other second crank is fixedly connected to the second eccentric wheel, and a linkage rod is fixedly connected between the first eccentric wheel and the second eccentric wheel.

[0014] Preferably, a second drive motor is installed on one side of the top of the second fixing frame, and an output end of the second drive motor is fixedly connected to the shaft end of the first eccentric wheel.

[0015] Preferably, a plurality of push plates are clamped on the top of the movable frame, and the push plates are evenly distributed on the top of the movable frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, during feeding, the chassis accessories are clamped and positioned by using two clamping plates on the inner side of the clamping member, thereby ensuring the precise positioning of the accessories during the processing. The first drive motor on one side of the first fixed frame is started to control the rotation of the first crank, and then through the coordinated action of the second transmission rod and the first transmission rod, the rotating rod rotates alternately clockwise and counterclockwise, and the rotating rod further drives the movement of the swing rod, so that the movable rod completes precise rotation, horizontal movement and vertical downward movement under the guidance of the first limit block, thereby accurately controlling the clamping and positioning of the chassis accessories by the clamping member, effectively reducing the processing error caused by position deviation, and improving the processing accuracy. By reducing downtime and manual adjustment requirements, the overall processing process becomes smoother and more efficient, while reducing the amount of waste caused by inaccurate positioning or uneven processing.

[0017] 2. In the present invention, the cylinder drive is utilized to accurately control the driving block to move in a specific direction, so that the two movable blocks can perform stable linear motion on the mounting frame through the slider. When the driving block is started, the second limit blocks on both sides thereof slide inside the limit groove, exerting a direct force on the movable block to make it move accordingly. The forward and backward movement of the driving block causes the two movable blocks to move synchronously, so that the splint can accurately clamp, position and release the chassis accessories, thereby improving the automation degree and work efficiency of the production line. By accurately controlling the movement of the splint, the chassis accessories are ensured to be quickly and accurately positioned during the feeding process, which not only improves the production accuracy, but also ensures the smooth progress of subsequent processing steps.

[0018] 3. In the present invention, during the feeding process, after the second drive motor is started, its driving force directly acts on the first eccentric wheel through the transmission system, generating periodic eccentric motion, which is transmitted to the second eccentric wheel through the linkage rod, so that the two rotate synchronously. Due to the synchronous motion of the eccentric wheels, the connected second crank also rotates accordingly, thereby driving the movable frame to perform stable reciprocating motion. During the movement of the movable frame, the push plate on the top applies uniform thrust to the accessories of the feeding frame, ensuring that the pushing distance each time is consistent, achieving uniform material advancement, avoiding material accumulation, and thus preventing unstable or stagnant cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an automatic feeding device for cutting automobile chassis of the present invention; Figure 2 It is a partial structural schematic diagram of an automatic feeding device for cutting automobile chassis of the present invention; Figure 3 It is a structural schematic diagram of a transfer mechanism of an automatic feeding device for cutting automobile chassis of the present invention; Figure 4 It is a schematic diagram of the disassembled structure of a transfer mechanism of an automatic feeding device for cutting automobile chassis of the present invention; Figure 5 It is a structural schematic diagram of a clamping part of an automatic feeding device for cutting automobile chassis of the present invention; Figure 6 It is a structural schematic diagram of a feeding mechanism of an automatic feeding device for cutting automobile chassis of the present invention; Figure 7 The present invention is a front view structural schematic diagram of a feeding mechanism of an automatic feeding device for cutting automobile chassis.

[0020] In the figure: 1. conveyor belt; 2. transfer mechanism; 21. first fixed frame; 22. first drive motor; 23. movable rod; 231. limit hole; 24. swing rod; 25. first crank; 26. rotating rod; 27. first transmission rod; 28. second transmission rod; 29. ​​first limit block; 3. feeding mechanism; 31. second fixed frame; 32. feeding frame; 33. second drive motor; 34. movable frame; 35. push plate; 36. second crank; 37. linkage rod; 38. first eccentric wheel; 39. second eccentric wheel; 4. guide plate; 5. clamping member; 51. mounting frame; 52. cylinder; 53. drive block; 54. movable block; 55. clamping plate; 56. slider; 57. limit groove; 58. second limit block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Reference Figure 1 - Figure 5 As shown: an automatic feeding device for cutting automobile chassis, comprising a conveyor belt 1, two guide plates 4 are symmetrically installed on one side of the top of the conveyor belt 1, a transfer mechanism 2 is installed on one side of the top of the conveyor belt 1, and a feeding mechanism 3 is installed on one side of the conveyor belt 1, and a clamping member 5 is installed on the bottom of the transfer mechanism 2; The transfer mechanism 2 includes a first fixed frame 21, a rotating rod 26 is rotatably connected to the side wall of the first fixed frame 21, one end of the rotating rod 26 is fixedly connected to the swing rod 24, and the other end of the rotating rod 26 is fixedly connected to the first transmission rod 27, a movable rod 23 is arranged on one side of the first fixed frame 21, one end of the swing rod 24 extends to the inner side of the middle part of the movable rod 23, and the swing rod 24 is rotatably connected to the movable rod 23, a limiting hole 231 is provided at the top of the movable rod 23, a first limiting block 29 is slidably connected to the inner side of the limiting hole 231, one end of the first limiting block 29 is rotatably connected to the side wall of the first fixed frame 21, one end of the first transmission rod 27 is rotatably connected to the second transmission rod 28, and one end of the second transmission rod 28 is rotatably connected to the first crank 25; The clamping member 5 includes a mounting frame 51 , two movable blocks 54 are symmetrically mounted on the inner side of the mounting frame 51 , and two clamping plates 55 are symmetrically arranged on one side of the mounting frame 51 , and the clamping plates 55 are fixedly connected to the side walls of the movable blocks 54 .

[0023] In this embodiment, when feeding, the two clamping plates 55 on the inner side of the clamping member 5 are used to clamp and position the chassis accessories, thereby ensuring the precise positioning of the accessories during the processing. Then, the first drive motor 22 on one side of the first fixed frame 21 is started to control the first crank 25 to rotate. During the rotation process, the first crank 25 transmits power through the second transmission rod 28 connected to it, driving it to rotate. The second transmission rod 28 transmits the force to the first transmission rod 27 by applying a torque, thereby causing the rotating rod 26 to rotate accordingly. Since the first crank 25 is driven by the first drive motor 22, when performing a circular motion, the force acting on the second transmission rod 28 will continuously change direction. Through the coordinated action of the second transmission rod 28 and the first transmission rod 27, the rotating rod 26 will rotate alternately clockwise and counterclockwise during the feeding process.

[0024] During this process, the rotating rod 26 further drives the swing rod 24 to swing, so that the movable rod 23 moves under the action of the first limit block 29. With the movement of the swing rod 24, the positional relationship between the limit hole 231 at the top of the movable rod 23 and the first limit block 29 changes continuously. Since the first limit block 29 can rotate, the movable rod 23, under the guidance of the first limit block 29, first rotates 90 degrees, then moves horizontally for a distance, then rotates 90 degrees again, and moves downward when reaching a vertical state, finally accurately controlling the clamping position of the chassis accessory by the clamping member 5.

[0025] This process ensures consistency and stability in the feeding process through precise mechanical movement and synergy, reduces processing errors caused by position deviation, and improves processing accuracy. At the same time, this design also effectively reduces downtime and the need for manual adjustment, improving the efficiency and smoothness of the entire processing process.

[0026] This ensures uniform feeding, ensures that the position and angle of the workpiece in the machine tool or processing equipment are always consistent, reduces processing errors caused by position deviation, and improves processing accuracy. At the same time, this also reduces downtime and the need for manual adjustments, making the processing process smoother and more efficient, and reducing the amount of scrap caused by inaccurate positioning or uneven processing.

[0027] Embodiment 2: Figure 3 - Figure 5 As shown, a first driving motor 22 is installed on one side of the top of the first fixed frame 21, and the output end of the first driving motor 22 is fixedly connected to the first crank 25, and the bottom end of the movable rod 23 is fixedly connected to the top of the mounting frame 51. A limiting groove 57 is provided on the side wall of the movable block 54, and a cylinder 52 is fixedly connected to the center of one side of the mounting frame 51, and a driving block 53 is fixedly connected to the output end of the cylinder 52. Second limiting blocks 58 are fixedly connected on both sides of the driving block 53, and the second limiting blocks 58 are slidably connected to the limiting groove 57, and the cross section of the second limiting block 58 is a trapezoidal structure. Slide blocks 56 are fixedly connected to the top and bottom of the movable block 54, and the slide blocks 56 are slidably connected to the mounting frame 51.

[0028] In this embodiment, the driving block 53 can be precisely controlled to move in a specific direction by driving the air cylinder 52. When the air cylinder 52 is started, the driving block 53 starts to move, and the second limit blocks 58 on both sides of the driving block 53 slide smoothly inside the limit groove 57. The interaction between the limit groove 57 and the second limit block 58 generates a direct force on the movable block 54, causing the movable block 54 to move accordingly.

[0029] Since sliders 56 are installed at the top and bottom of the movable block 54, and these sliders 56 slide smoothly on the guide rails of the mounting frame 51, the movable block 54 is restricted to the straight line guided by the sliders 56 during the movement. This design ensures that the movement path of the movable block 54 will not deviate from the predetermined track, so that it can follow the action of the driving block 53 to perform precise linear movement.

[0030] In addition, when the driving block 53 moves forward or backward, the two movable blocks 54 will move synchronously, either approaching each other or moving away from each other. Such synchronous movement can make the two clamping plates 55 move together, and the closing and opening of the clamping plates 55 can be used to achieve accurate clamping, positioning and release of the chassis accessories. This design enables the chassis accessories to be quickly and accurately positioned during the feeding process in the automated production line, improves production efficiency and accuracy, and ensures the smooth progress of subsequent processes.

[0031] Embodiment 3: According to Figure 6 and Figure 7As shown, the feeding mechanism 3 includes a second fixed frame 31, a feeding frame 32 is installed above the second fixed frame 31, the side wall of the feeding frame 32 is fixedly connected to the conveyor belt 1, and a second driving motor 33 is installed on one side of the top of the second fixed frame 31. Two second cranks 36 are rotatably connected to the top of the second fixed frame 31, and a movable frame 34 is installed below the feeding frame 32, and the bottom end of the movable frame 34 is rotatably connected to one end of the second crank 36. One of the second cranks 36 is fixedly connected to the first eccentric wheel 38, and one end of the other second crank 36 is fixedly connected to the second eccentric wheel 39, and a linkage rod 37 is fixedly connected between the first eccentric wheel 38 and the second eccentric wheel 39. A second driving motor 33 is installed on one side of the top of the second fixed frame 31, and the output end of the second driving motor 33 is fixedly connected to the shaft end of the first eccentric wheel 38. A plurality of push plates 35 are clamped on the top of the movable frame 34, and the push plates 35 are evenly distributed on the top of the movable frame 34.

[0032] In this embodiment, during the feeding process, after the second drive motor 33 is started, its driving force will directly act on the first eccentric wheel 38 through the transmission system to rotate it. The rotation of the first eccentric wheel 38 generates a periodic eccentric motion, and this motion is transmitted to the second eccentric wheel 39 through the linkage rod 37. Due to the force of the linkage rod 37, a linkage relationship is formed between the two, so that the second eccentric wheel 39 can rotate synchronously with the first eccentric wheel 38.

[0033] As the first eccentric wheel 38 and the second eccentric wheel 39 rotate synchronously, the second cranks 36 connected to them are also affected by the driving force and rotate synchronously. The rotation of the second crank 36 not only drives the movable frame 34 connected thereto to reciprocate following the movement of the crank, but also provides stable support for the movable frame 34 during the movement, ensuring that the movable frame 34 remains stable under high-speed movement.

[0034] When the movable frame 34 reciprocates with the second crank 36, the push plate 35 installed on the top will simultaneously apply a thrust to the accessories on the top of the feeding frame 32. The design of the push plate 35 ensures that the distance of each push is consistent, thereby ensuring that the accessories can be pushed forward at a uniform speed throughout the feeding process. This uniformity is crucial for subsequent processes, especially the cutting of automobile chassis accessories.

[0035] By precisely controlling the feeding rhythm and distance, the material is prevented from piling up during the feeding process, thereby preventing unstable cutting or stagnation caused by material accumulation. This design not only improves the efficiency of the production line, but also effectively reduces the defective rate and ensures the processing quality of automobile chassis parts.

[0036] The use method and working principle of the device are as follows: When feeding, the two clamping plates 55 on the inner side of the clamping member 5 are used to clamp and position the chassis accessories. Subsequently, the first drive motor 22 on one side of the first fixed frame 21 is used to control the rotation of the first crank 25, so that the first crank 25 drives the second transmission rod 28 to rotate during the rotation process, and then applies a force to the first transmission rod 27, thereby transmitting the force to the first transmission rod 27 and controlling the rotation of the rotating rod 26. Since the first crank 25 performs a circular motion under the drive of the first drive motor 22, the force applied to the second transmission rod 28 will change direction. Through the coordinated action of the second transmission rod 28 and the first transmission rod 27, the rotating rod 26 rotates alternately clockwise and counterclockwise. In this process, the rotating rod 26 drives the swinging rod 24 to swing. During the swinging process, the movable rod 23 is acted upon by the first limit block 29, so that the limit hole 231 at the top of the movable rod 23 is in a relative position with the first limit block 29. Since the first limit block 29 can rotate, the movable rod 23, driven by the swing rod 24, will first rotate 90 degrees after passing the limit of the first limit block 29, then move horizontally for a distance, then rotate 90 degrees, and move downward for a distance in a vertical state, so as to control the clamping part 5 to clamp and position the chassis accessories.

[0037] The driving of the air cylinder 52 can control the movement of the driving block 53. At this time, the second limit blocks 58 on both sides of the driving block 53 slide inside the limit groove 57, and cooperate with the limit groove 57 to apply a force to the movable block 54, so that the movable block 54 starts to move. Since the sliders 56 at the top and bottom of the movable block 54 slide on the mounting frame 51, the movable block 54 can only move linearly along the sliders 56. Therefore, the movement of the driving block 53 will simultaneously control the two movable blocks 54 to approach or move away from each other, so that the two clamping plates 55 follow the movable block 54 to clamp, position and release.

[0038] During the feeding process, the first eccentric wheel 38 can be driven to rotate by the drive of the second drive motor 33. During this process, the force of the linkage rod 37 causes the second eccentric wheel 39 to rotate along with the first eccentric wheel 38, so that the first eccentric wheel 38 and the second eccentric wheel 39 rotate synchronously. The first eccentric wheel 38 and the second eccentric wheel 39 respectively drive the two second cranks 36 to rotate, resulting in the two second cranks 36 rotating synchronously. The two second cranks 36 not only drive the movable frame 34 to move, but also support the movable frame 34 to keep it stable. In the process of the movable frame 34 following the movement of the second cranks 36, the accessories on the top of the feeding frame 32 are pushed to move by the push plate 35 on the top.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic feeding device for cutting automobile chassis, comprising a conveyor belt (1), two guide plates (4) being symmetrically mounted on one side of the top of the conveyor belt (1), characterized in that: A transfer mechanism (2) is installed on one side of the top of the conveyor belt (1), a feeding mechanism (3) is installed on one side of the conveyor belt (1), and a clamping member (5) is installed on the bottom of the transfer mechanism (2); The transfer mechanism (2) comprises a first fixed frame (21), a side wall of the first fixed frame (21) is rotatably connected to a rotating rod (26), one end of the rotating rod (26) is fixedly connected to a swing rod (24), and the other end of the rotating rod (26) is fixedly connected to a first transmission rod (27), a movable rod (23) is arranged on one side of the first fixed frame (21), one end of the swing rod (24) extends to the inner side of the middle part of the movable rod (23), and the swing rod (24) is rotatably connected to the movable rod (23), a limiting hole (231) is provided at the top end of the movable rod (23), a first limiting block (29) is slidably connected to the inner side of the limiting hole (231), one end of the first limiting block (29) is rotatably connected to the side wall of the first fixed frame (21), one end of the first transmission rod (27) is rotatably connected to a second transmission rod (28), and one end of the second transmission rod (28) is rotatably connected to a first crank (25); The clamping member (5) comprises a mounting frame (51), two movable blocks (54) are symmetrically mounted on the inner side of the mounting frame (51), and two clamping plates (55) are symmetrically arranged on one side of the mounting frame (51), and the clamping plates (55) are fixedly connected to the side walls of the movable blocks (54).

2. The automatic feeding device for cutting automobile chassis according to claim 1, characterized in that: A first drive motor (22) is mounted on one side of the top of the first fixing frame (21); an output end of the first drive motor (22) is fixedly connected to a first crank (25); and a bottom end of the movable rod (23) is fixedly connected to the top of the mounting frame (51).

3. The automatic feeding device for cutting automobile chassis according to claim 2 is characterized in that: A limiting groove (57) is provided on the side wall of the movable block (54); a cylinder (52) is fixedly connected to the center of one side of the mounting frame (51); and a driving block (53) is fixedly connected to the output end of the cylinder (52).

4. The automatic feeding device for cutting automobile chassis according to claim 3 is characterized in that: Second limit blocks (58) are fixedly connected to both sides of the driving block (53); the second limit blocks (58) are slidably connected to the limit grooves (57); and the cross-section of the second limit blocks (58) is a trapezoidal structure.

5. The automatic feeding device for cutting automobile chassis according to claim 4, characterized in that: The top and bottom of the movable block (54) are both fixedly connected with a sliding block (56), and the sliding block (56) is slidably connected to the mounting frame (51).

6. The automatic feeding device for cutting automobile chassis according to claim 1, characterized in that: The feeding mechanism (3) comprises a second fixed frame (31), a feeding frame (32) is mounted above the second fixed frame (31), a side wall of the feeding frame (32) is fixedly connected to the conveyor belt (1), and a second driving motor (33) is mounted on one side of the top of the second fixed frame (31).

7. The automatic feeding device for cutting automobile chassis according to claim 6, characterized in that: The top of the second fixed frame (31) is rotatably connected to two second cranks (36), a movable frame (34) is installed below the feeding frame (32), and the bottom end of the movable frame (34) is rotatably connected to one end of the second crank (36).

8. The automatic feeding device for cutting automobile chassis according to claim 7, characterized in that: One of the second cranks (36) is fixedly connected to a first eccentric wheel (38), one end of the other second crank (36) is fixedly connected to a second eccentric wheel (39), and a linkage rod (37) is fixedly connected between the first eccentric wheel (38) and the second eccentric wheel (39).

9. The automatic feeding device for cutting automobile chassis according to claim 8, characterized in that: A second drive motor (33) is mounted on one side of the top of the second fixing frame (31), and an output end of the second drive motor (33) is fixedly connected to a shaft end of the first eccentric wheel (38).

10. The automatic feeding device for cutting automobile chassis according to claim 9, characterized in that: A plurality of push plates (35) are clamped on the top of the movable frame (34), and the push plates (35) are evenly distributed on the top of the movable frame (34).

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